Malware Analysis Report

2024-10-23 19:35

Sample ID 240505-n3ktdace54
Target Build1.exe
SHA256 b4235f7583ae798d313b878ad9639a5646c04b45a1d9f43d1fa09c37163c6e78
Tags
upx modiloader persistence trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

b4235f7583ae798d313b878ad9639a5646c04b45a1d9f43d1fa09c37163c6e78

Threat Level: Known bad

The file Build1.exe was found to be: Known bad.

Malicious Activity Summary

upx modiloader persistence trojan

ModiLoader Second Stage

Modiloader family

ModiLoader, DBatLoader

ModiLoader Second Stage

Checks computer location settings

Executes dropped EXE

UPX packed file

Loads dropped DLL

Adds Run key to start application

Unsigned PE

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-05 11:55

Signatures

ModiLoader Second Stage

Description Indicator Process Target
N/A N/A N/A N/A

Modiloader family

modiloader

UPX packed file

upx
Description Indicator Process Target
N/A N/A N/A N/A

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-05 11:55

Reported

2024-05-05 11:57

Platform

win7-20240220-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Build1.exe"

Signatures

ModiLoader, DBatLoader

trojan modiloader

ModiLoader Second Stage

Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\AdobeART.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Build1.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Build1.exe N/A

UPX packed file

upx
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\AdobeART = "C:\\Users\\Admin\\AppData\\Roaming\\AdobeART.exe" C:\Users\Admin\AppData\Roaming\AdobeART.exe N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\Build1.exe

"C:\Users\Admin\AppData\Local\Temp\Build1.exe"

C:\Users\Admin\AppData\Roaming\AdobeART.exe

"C:\Users\Admin\AppData\Roaming\AdobeART.exe"

Network

Country Destination Domain Proto
TH 156.225.129.218:1555 tcp
TH 156.225.129.218:1555 tcp
TH 156.225.129.218:1555 tcp
TH 156.225.129.218:1555 tcp
TH 156.225.129.218:1555 tcp
TH 156.225.129.218:1555 tcp
TH 156.225.129.218:1555 tcp
TH 156.225.129.218:1555 tcp
TH 156.225.129.218:1555 tcp
TH 156.225.129.218:1555 tcp
TH 156.225.129.218:1555 tcp
TH 156.225.129.218:1555 tcp
TH 156.225.129.218:1555 tcp
TH 156.225.129.218:1555 tcp
TH 156.225.129.218:1555 tcp
TH 156.225.129.218:1555 tcp
TH 156.225.129.218:1555 tcp
TH 156.225.129.218:1555 tcp
TH 156.225.129.218:1555 tcp
TH 156.225.129.218:1555 tcp

Files

memory/2036-0-0x0000000000400000-0x0000000000414000-memory.dmp

\Users\Admin\AppData\Roaming\AdobeART.exe

MD5 a4b14b3833555e5a0687838bbea8553d
SHA1 fb2a65cd531bfb47023ce37dea1bae4e6f572ba3
SHA256 b4235f7583ae798d313b878ad9639a5646c04b45a1d9f43d1fa09c37163c6e78
SHA512 1ca5731abd0c157747e0df0a112b6ca9698937fef6e3d37d5608e1ad5292a68ba330a7cb809149e69ed02b5ff3e093cebeb965fb3f1b797a25d8134de968cb96

memory/2036-10-0x0000000000400000-0x0000000000414000-memory.dmp

memory/2004-12-0x0000000000400000-0x0000000000414000-memory.dmp

memory/2004-13-0x0000000000400000-0x0000000000414000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-05 11:55

Reported

2024-05-05 11:57

Platform

win10v2004-20240419-en

Max time kernel

141s

Max time network

145s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Build1.exe"

Signatures

ModiLoader, DBatLoader

trojan modiloader

ModiLoader Second Stage

Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-877519540-908060166-1852957295-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\Build1.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\AdobeART.exe N/A

UPX packed file

upx
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\AdobeART = "C:\\Users\\Admin\\AppData\\Roaming\\AdobeART.exe" C:\Users\Admin\AppData\Roaming\AdobeART.exe N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\Build1.exe

"C:\Users\Admin\AppData\Local\Temp\Build1.exe"

C:\Users\Admin\AppData\Roaming\AdobeART.exe

"C:\Users\Admin\AppData\Roaming\AdobeART.exe"

Network

Country Destination Domain Proto
TH 156.225.129.218:1555 tcp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 77.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 22.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
NL 23.62.61.97:443 www.bing.com tcp
US 8.8.8.8:53 97.61.62.23.in-addr.arpa udp
TH 156.225.129.218:1555 tcp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
TH 156.225.129.218:1555 tcp
TH 156.225.129.218:1555 tcp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
TH 156.225.129.218:1555 tcp
TH 156.225.129.218:1555 tcp
TH 156.225.129.218:1555 tcp
TH 156.225.129.218:1555 tcp
US 8.8.8.8:53 79.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 49.15.97.104.in-addr.arpa udp
TH 156.225.129.218:1555 tcp
TH 156.225.129.218:1555 tcp
TH 156.225.129.218:1555 tcp
US 8.8.8.8:53 22.236.111.52.in-addr.arpa udp
TH 156.225.129.218:1555 tcp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
TH 156.225.129.218:1555 tcp
TH 156.225.129.218:1555 tcp
TH 156.225.129.218:1555 tcp
TH 156.225.129.218:1555 tcp
TH 156.225.129.218:1555 tcp

Files

memory/4268-0-0x0000000000400000-0x0000000000414000-memory.dmp

C:\Users\Admin\AppData\Roaming\AdobeART.exe

MD5 a4b14b3833555e5a0687838bbea8553d
SHA1 fb2a65cd531bfb47023ce37dea1bae4e6f572ba3
SHA256 b4235f7583ae798d313b878ad9639a5646c04b45a1d9f43d1fa09c37163c6e78
SHA512 1ca5731abd0c157747e0df0a112b6ca9698937fef6e3d37d5608e1ad5292a68ba330a7cb809149e69ed02b5ff3e093cebeb965fb3f1b797a25d8134de968cb96

memory/4268-10-0x0000000000400000-0x0000000000414000-memory.dmp

memory/408-11-0x0000000000400000-0x0000000000414000-memory.dmp